Scott Mansell [Sun, 6 Jan 2019 01:40:10 +0000 (14:40 +1300)]
Rename cells based on the wires they drive.
Clifford Wolf [Fri, 4 Jan 2019 14:18:18 +0000 (15:18 +0100)]
Merge pull request #777 from mmicko/achronix_cell_sim_fix
Fix cells_sim.v for Achronix FPGA
Miodrag Milanovic [Fri, 4 Jan 2019 14:15:23 +0000 (15:15 +0100)]
Fix cells_sim.v for Achronix FPGA
Clifford Wolf [Fri, 4 Jan 2019 14:03:29 +0000 (15:03 +0100)]
Remove -m32 Verific eval lib build instructions
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Fri, 4 Jan 2019 13:56:04 +0000 (14:56 +0100)]
Merge pull request #776 from mmicko/unify_noflatten
Unify usage of noflatten among architectures
Clifford Wolf [Fri, 4 Jan 2019 13:44:35 +0000 (14:44 +0100)]
Update Verific default path
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Miodrag Milanovic [Fri, 4 Jan 2019 10:37:25 +0000 (11:37 +0100)]
Unify usage of noflatten among architectures
Clifford Wolf [Thu, 3 Jan 2019 16:03:18 +0000 (17:03 +0100)]
Merge pull request #775 from whitequark/opt_flowmap
flowmap: new techmap pass
whitequark [Wed, 2 Jan 2019 14:09:53 +0000 (14:09 +0000)]
flowmap: new techmap pass.
Clifford Wolf [Wed, 2 Jan 2019 16:34:04 +0000 (17:34 +0100)]
Merge pull request #770 from whitequark/opt_expr_cmp
opt_expr: refactor and improve simplification of comparisons
whitequark [Wed, 2 Jan 2019 05:04:28 +0000 (05:04 +0000)]
opt_expr: improve simplification of comparisons with large constants.
The idea behind this simplification is that a N-bit signal X being
compared with an M-bit constant where M>N and the constant has Nth
or higher bit set, it either always succeeds or always fails.
However, the existing implementation only worked with one-hot signals
for some reason. It also printed incorrect messages.
This commit adjusts the simplification to have as much power as
possible, and fixes other bugs.
Clifford Wolf [Wed, 2 Jan 2019 15:28:18 +0000 (16:28 +0100)]
Merge pull request #755 from Icenowy/anlogic-dram-init
anlogic: implement DRAM initialization
Clifford Wolf [Wed, 2 Jan 2019 14:53:50 +0000 (15:53 +0100)]
Merge branch 'master' of github.com:YosysHQ/yosys
Clifford Wolf [Wed, 2 Jan 2019 14:52:22 +0000 (15:52 +0100)]
Merge pull request #750 from Icenowy/anlogic-ff-init
Initialization of Anlogic DFFs
Clifford Wolf [Wed, 2 Jan 2019 14:45:29 +0000 (15:45 +0100)]
Merge pull request #773 from whitequark/opt_lut_elim_fixes
opt_lut: elimination fixes
Clifford Wolf [Wed, 2 Jan 2019 14:44:57 +0000 (15:44 +0100)]
Merge pull request #772 from whitequark/synth_lut
synth: add k-LUT mode
Clifford Wolf [Wed, 2 Jan 2019 14:43:10 +0000 (15:43 +0100)]
Merge pull request #771 from whitequark/techmap_cmp2lut
cmp2lut: new techmap pass
Clifford Wolf [Wed, 2 Jan 2019 14:33:43 +0000 (15:33 +0100)]
Improve VerificImporter support for writes to asymmetric memories
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Wed, 2 Jan 2019 14:05:23 +0000 (15:05 +0100)]
Fix VerificImporter asymmetric memories error message
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Wed, 2 Jan 2019 13:47:18 +0000 (14:47 +0100)]
Merge pull request #769 from whitequark/typos
Fix typographical and grammatical errors and inconsistencies
whitequark [Fri, 7 Dec 2018 19:14:07 +0000 (19:14 +0000)]
Fix typographical and grammatical errors and inconsistencies.
The initial list of hits was generated with the codespell command
below, and each hit was evaluated and fixed manually while taking
context into consideration.
DIRS="kernel/ frontends/ backends/ passes/ techlibs/"
DIRS="${DIRS} libs/ezsat/ libs/subcircuit"
codespell $DIRS -S *.o -L upto,iff,thru,synopsys,uint
More hits were found by looking through comments and strings manually.
whitequark [Wed, 2 Jan 2019 10:21:58 +0000 (10:21 +0000)]
opt_lut: reflect changes in sigmap.
Otherwise, some LUTs will be missed during elimination.
whitequark [Wed, 2 Jan 2019 09:36:32 +0000 (09:36 +0000)]
opt_lut: use a worklist, and revisit cells affected by elimination.
whitequark [Wed, 2 Jan 2019 08:40:01 +0000 (08:40 +0000)]
opt_lut: count eliminated cells, and set opt.did_something for them.
whitequark [Wed, 2 Jan 2019 08:25:55 +0000 (08:25 +0000)]
synth_ice40: use 4-LUT coarse synthesis mode.
whitequark [Wed, 2 Jan 2019 08:25:03 +0000 (08:25 +0000)]
synth: add k-LUT mode.
whitequark [Wed, 2 Jan 2019 08:05:44 +0000 (08:05 +0000)]
synth: improve script documentation. NFC.
whitequark [Wed, 2 Jan 2019 07:53:31 +0000 (07:53 +0000)]
cmp2lut: new techmap pass.
whitequark [Wed, 2 Jan 2019 04:31:20 +0000 (04:31 +0000)]
opt_expr: refactor simplification of unsigned X<onehot and X>=onehot. NFCI.
whitequark [Wed, 2 Jan 2019 03:01:25 +0000 (03:01 +0000)]
opt_expr: refactor simplification of signed X>=0 and X<0. NFCI.
whitequark [Wed, 2 Jan 2019 02:45:49 +0000 (02:45 +0000)]
opt_expr: simplify any unsigned comparisons with all-0 and all-1.
Before this commit, only unsigned comparisons with all-0 would be
simplified. This commit also makes the code handling such comparisons
to be more rigorous and not abort on unexpected input.
Clifford Wolf [Tue, 1 Jan 2019 10:13:48 +0000 (11:13 +0100)]
Merge pull request #768 from whitequark/opt_lut_elim
opt_lut: eliminate LUTs evaluating to constants or inputs
whitequark [Mon, 31 Dec 2018 23:53:23 +0000 (23:53 +0000)]
opt_lut: eliminate LUTs evaluating to constants or inputs.
Clifford Wolf [Mon, 31 Dec 2018 15:34:27 +0000 (16:34 +0100)]
Fix handling of (* keep *) wires in wreduce
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Mon, 31 Dec 2018 14:52:01 +0000 (15:52 +0100)]
Merge pull request #766 from Icenowy/anlogic-latches
anlogic: add latch cells
Larry Doolittle [Fri, 28 Dec 2018 16:21:53 +0000 (08:21 -0800)]
Fix 7 instances of add_share_file to add_gen_share_file
in techlibs/ecp5/Makefile.inc to permit out-of-tree builds
Larry Doolittle [Fri, 28 Dec 2018 16:24:31 +0000 (08:24 -0800)]
Squelch a little more trailing whitespace
Icenowy Zheng [Tue, 25 Dec 2018 14:47:46 +0000 (22:47 +0800)]
anlogic: add latch cells
Add latch cells to Anlogic cells replacement library by copying other
FPGAs' latch code to it.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Clifford Wolf [Sun, 23 Dec 2018 15:16:06 +0000 (16:16 +0100)]
Merge pull request #761 from whitequark/proc_clean_partial
proc_clean: remove any empty cases, if possible to do safely
Clifford Wolf [Sun, 23 Dec 2018 14:45:09 +0000 (15:45 +0100)]
Add "read_ilang -[no]overwrite"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Sun, 23 Dec 2018 14:44:19 +0000 (15:44 +0100)]
Merge branch 'master' of github.com:YosysHQ/yosys
whitequark [Sun, 23 Dec 2018 09:04:23 +0000 (09:04 +0000)]
proc_clean: remove any empty cases if all cases use all-def compare.
Clifford Wolf [Sat, 22 Dec 2018 19:12:18 +0000 (20:12 +0100)]
Merge pull request #757 from whitequark/manual_mem
manual: document $meminit cell and memory_* passes
whitequark [Sat, 22 Dec 2018 08:58:37 +0000 (08:58 +0000)]
proc_clean: remove any empty cases at the end of the switch.
Previously, only completely empty switches were removed.
whitequark [Fri, 21 Dec 2018 01:26:08 +0000 (01:26 +0000)]
manual: make description of $meminit ports match reality.
Clifford Wolf [Fri, 21 Dec 2018 16:56:43 +0000 (17:56 +0100)]
Merge pull request #758 from whitequark/tcl_script_args
tcl: add support for passing arguments to scripts
Clifford Wolf [Fri, 21 Dec 2018 16:39:52 +0000 (17:39 +0100)]
Merge pull request #759 from whitequark/memory_collect_init_x
memory_collect: do not truncate 'x from \INIT
whitequark [Fri, 21 Dec 2018 02:01:27 +0000 (02:01 +0000)]
memory_collect: do not truncate 'x from \INIT.
The semantics of an RTLIL constant that has less bits than its
declared bit width is zero padding. Therefore, if the output of
memory_collect will be used for simulation, truncating 'x from
the end of \INIT will produce incorrect simulation results.
whitequark [Thu, 20 Dec 2018 07:59:40 +0000 (07:59 +0000)]
manual: fix typos.
whitequark [Thu, 20 Dec 2018 07:29:46 +0000 (07:29 +0000)]
tcl: add support for passing arguments to scripts.
whitequark [Thu, 20 Dec 2018 04:37:28 +0000 (04:37 +0000)]
manual: document $meminit cell and memory_* passes.
Icenowy Zheng [Wed, 19 Dec 2018 02:18:47 +0000 (10:18 +0800)]
anlogic: implement DRAM initialization
As the TD tool doesn't accept the DRAM cell to contain unknown values in
the initial value, the initialzation support of DRAM is previously
skipped.
Now add the support by add a new pass to determine unknown values in the
initial value.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Clifford Wolf [Wed, 19 Dec 2018 18:52:31 +0000 (19:52 +0100)]
Merge pull request #752 from Icenowy/anlogic-lut-cost
Anlogic: let LUT5/6 have more cost than LUT4-
Clifford Wolf [Wed, 19 Dec 2018 18:51:10 +0000 (19:51 +0100)]
Merge pull request #753 from Icenowy/anlogic-makefile-fix
anlogic: fix Makefile.inc
Clifford Wolf [Wed, 19 Dec 2018 18:48:54 +0000 (19:48 +0100)]
Merge pull request #749 from Icenowy/anlogic-dram-fix
anlogic: fix dbits of Anlogic Eagle DRAM16X4
Icenowy Zheng [Wed, 19 Dec 2018 02:23:58 +0000 (10:23 +0800)]
anlogic: fix Makefile.inc
During the addition of DRAM inferring support, the installation of
eagle_bb.v is accidentally removed.
Fix this issue.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Icenowy Zheng [Wed, 19 Dec 2018 01:36:53 +0000 (09:36 +0800)]
Anlogic: let LUT5/6 have more cost than LUT4-
According to the datasheet of Anlogic Eagle FPGAs, The LUTs natively
in an Anlogic FPGA is LUT4 (in MSLICEs) and "Enhanced LUT5" (in
LSLICEs). An "Enhanced LUT5" can be divided into two LUT4s.
So a LUT5 will cost around 2x resource of a LUT4, and a LUT6 will cost
2x resource of a LUT5.
Change the -lut parameter passed to the abc command to pass this cost
info to the ABC process.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Clifford Wolf [Tue, 18 Dec 2018 19:02:39 +0000 (20:02 +0100)]
Minor style fixes
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Tue, 18 Dec 2018 18:59:29 +0000 (19:59 +0100)]
Merge pull request #748 from makaimann/add-btor-ops
Add btor ops for $mul, $div, $mod and $concat
Clifford Wolf [Tue, 18 Dec 2018 18:55:42 +0000 (19:55 +0100)]
Merge pull request #751 from daveshah1/fix_589
memory_dff: Fix typo when checking init value
David Shah [Tue, 18 Dec 2018 17:40:01 +0000 (17:40 +0000)]
memory_dff: Fix typo when checking init value
Signed-off-by: David Shah <davey1576@gmail.com>
Clifford Wolf [Tue, 18 Dec 2018 16:49:38 +0000 (17:49 +0100)]
Fix segfault in AST simplify
(as proposed by Dan Gisselquist)
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Icenowy Zheng [Tue, 18 Dec 2018 07:39:02 +0000 (15:39 +0800)]
anlogic: set the init value of DFFs
As dffinit has already supported for different initialization strings
for DFFs and check for re-initialization, initialization of Anlogic
DFFs are now ready to go.
Support for set the init values of Anlogic DFFs.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Icenowy Zheng [Tue, 18 Dec 2018 15:10:40 +0000 (23:10 +0800)]
Add "dffinit -noreinit" parameter
Sometimes the FF cell might be initialized during the map process, e.g.
some FPGA platforms (Anlogic Eagle and Lattice ECP5 for example) has
only a "SR" pin for a FF for async reset, that resets the FF to the
initial value, which means the async reset value should be set as the
initial value. In this case the DFFINIT pass shouldn't reinitialize it
to a different value, which will lead to error.
Add a "-noreinit" parameter for the safeguard. If a FF is not
technically initialized before DFFINIT pass, the default value should be
set to x.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Clifford Wolf [Tue, 18 Dec 2018 15:01:22 +0000 (16:01 +0100)]
Improve src tagging (using names and attrs) of cells and wires in verific front-end
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Icenowy Zheng [Tue, 18 Dec 2018 07:37:43 +0000 (15:37 +0800)]
Add "dffinit -strinit high low"
On some platforms the string to initialize DFF might not be "high" and
"low", e.g. with Anlogic TD it's "SET" and "RESET".
Add a "-strinit" parameter for dffinit to allow specify the strings used
for high and low.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Icenowy Zheng [Tue, 18 Dec 2018 06:38:44 +0000 (14:38 +0800)]
anlogic: fix dbits of Anlogic Eagle DRAM16X4
The dbits of DRAM16X4 is wrong set to 2, which leads to waste of DRAM
bits.
Fix the dbits number in the RAM configuration.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
makaimann [Mon, 5 Nov 2018 19:49:31 +0000 (11:49 -0800)]
Add btor ops for $mul, $div, $mod and $concat
Clifford Wolf [Mon, 17 Dec 2018 16:16:10 +0000 (17:16 +0100)]
Merge pull request #746 from Icenowy/anlogic-dram
Support for DRAM inferring on Anlogic FPGAs
Clifford Wolf [Mon, 17 Dec 2018 15:35:56 +0000 (16:35 +0100)]
Merge pull request #742 from whitequark/changelog
Update CHANGELOG to mention my improvements
Clifford Wolf [Mon, 17 Dec 2018 15:29:25 +0000 (16:29 +0100)]
Merge pull request #741 from whitequark/ilang_slice_sigspec
read_ilang: allow slicing all sigspecs, not just wires
Clifford Wolf [Mon, 17 Dec 2018 15:26:57 +0000 (16:26 +0100)]
Merge pull request #744 from whitequark/write_verilog_$shift
write_verilog: handle the $shift cell
Icenowy Zheng [Fri, 14 Dec 2018 08:50:37 +0000 (16:50 +0800)]
anlogic: add support for Eagle Distributed RAM
The MSLICEs on the Eagle series of FPGA can be configured as Distributed
RAM.
Enable to synthesis to DRAM.
As the Anlogic software suite doesn't support any 'bx to exist in the
initializtion data of DRAM, do not enable the initialization support of
the inferred DRAM.
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Icenowy Zheng [Fri, 14 Dec 2018 08:46:01 +0000 (16:46 +0800)]
Revert "Leave only real black box cells"
This reverts commit
43030db5fff285de85096aaf5578b0548659f6b7.
For a synthesis tool, generating EG_LOGIC cells are a good choice, as
they can be furtherly optimized when PnR, although sometimes EG_LOGIC is
not as blackbox as EG_PHY cells (because the latter is more close to the
hardware implementation).
Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
Clifford Wolf [Sun, 16 Dec 2018 20:27:56 +0000 (21:27 +0100)]
Merge pull request #745 from YosysHQ/revert-714-abc_preserve_naming
Revert "Proof-of-concept: preserve naming through ABC using dress"
Clifford Wolf [Sun, 16 Dec 2018 20:27:31 +0000 (21:27 +0100)]
Revert "Proof-of-concept: preserve naming through ABC using dress"
whitequark [Sun, 16 Dec 2018 18:46:32 +0000 (18:46 +0000)]
write_verilog: handle the $shift cell.
The implementation corresponds to the following Verilog, which is
lifted straight from simlib.v:
module \\$shift (A, B, Y);
parameter A_SIGNED = 0;
parameter B_SIGNED = 0;
parameter A_WIDTH = 0;
parameter B_WIDTH = 0;
parameter Y_WIDTH = 0;
input [A_WIDTH-1:0] A;
input [B_WIDTH-1:0] B;
output [Y_WIDTH-1:0] Y;
generate
if (B_SIGNED) begin:BLOCK1
assign Y = $signed(B) < 0 ? A << -B : A >> B;
end else begin:BLOCK2
assign Y = A >> B;
end
endgenerate
endmodule
whitequark [Sun, 16 Dec 2018 18:25:53 +0000 (18:25 +0000)]
Update CHANGELOG.
whitequark [Sun, 16 Dec 2018 17:50:36 +0000 (17:50 +0000)]
read_ilang: allow slicing sigspecs.
Clifford Wolf [Sun, 16 Dec 2018 15:45:49 +0000 (16:45 +0100)]
Merge pull request #736 from whitequark/select_assert_list
select: print selection if a -assert-* flag causes an error
whitequark [Thu, 13 Dec 2018 04:31:58 +0000 (04:31 +0000)]
select: print selection if a -assert-* flag causes an error.
Clifford Wolf [Sun, 16 Dec 2018 15:36:19 +0000 (16:36 +0100)]
Rename "fine:" label to "map:" in "synth_ice40"
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Sun, 16 Dec 2018 15:31:37 +0000 (16:31 +0100)]
Merge pull request #704 from webhat/feature/fix-awk
Using awk rather than gawk
whitequark [Thu, 13 Dec 2018 04:36:02 +0000 (04:36 +0000)]
write_verilog: add a missing newline.
Clifford Wolf [Sun, 16 Dec 2018 15:05:14 +0000 (16:05 +0100)]
Merge pull request #738 from smunaut/issue_737
verilog_parser: Properly handle recursion when processing attributes
Clifford Wolf [Sun, 16 Dec 2018 15:02:21 +0000 (16:02 +0100)]
Merge pull request #735 from daveshah1/trifixes
deminout fixes
Clifford Wolf [Sun, 16 Dec 2018 15:01:13 +0000 (16:01 +0100)]
Merge pull request #739 from whitequark/patch-1
Add .editorconfig file
whitequark [Sun, 16 Dec 2018 14:57:43 +0000 (14:57 +0000)]
Add .editorconfig file.
See https://editorconfig.org/ for details.
Clifford Wolf [Sun, 16 Dec 2018 14:57:28 +0000 (15:57 +0100)]
Fix equiv_opt indenting
Signed-off-by: Clifford Wolf <clifford@clifford.at>
Clifford Wolf [Sun, 16 Dec 2018 14:54:26 +0000 (15:54 +0100)]
Merge pull request #724 from whitequark/equiv_opt
equiv_opt: new command, for verifying optimization passes
Clifford Wolf [Sun, 16 Dec 2018 14:53:44 +0000 (15:53 +0100)]
Merge pull request #734 from grahamedgecombe/fix-shuffled-bram-initdata
memory_bram: Fix initdata bit order after shuffling
Clifford Wolf [Sun, 16 Dec 2018 14:50:42 +0000 (15:50 +0100)]
Merge pull request #730 from smunaut/ffssr_dont_touch
ice40: Honor the "dont_touch" attribute in FFSSR pass
Clifford Wolf [Sun, 16 Dec 2018 14:50:16 +0000 (15:50 +0100)]
Merge pull request #729 from whitequark/write_verilog_initial
write_verilog: correctly map RTLIL `sync init`
Clifford Wolf [Sun, 16 Dec 2018 14:42:04 +0000 (15:42 +0100)]
Merge pull request #725 from olofk/ram4k-init
Only use non-blocking assignments of SB_RAM40_4K for yosys
Clifford Wolf [Sun, 16 Dec 2018 14:41:30 +0000 (15:41 +0100)]
Merge pull request #714 from daveshah1/abc_preserve_naming
Proof-of-concept: preserve naming through ABC using dress
Clifford Wolf [Sun, 16 Dec 2018 14:30:08 +0000 (15:30 +0100)]
Merge pull request #723 from whitequark/synth_ice40_map_gates
synth_ice40: split `map_gates` off `fine`
Clifford Wolf [Sun, 16 Dec 2018 14:28:29 +0000 (15:28 +0100)]
Merge pull request #722 from whitequark/rename_src
rename: add -src, for inferring names from source locations
Clifford Wolf [Sun, 16 Dec 2018 14:27:23 +0000 (15:27 +0100)]
Merge pull request #720 from whitequark/master
lut2mux: handle 1-bit INIT constant in $lut cells
Sylvain Munaut [Thu, 13 Dec 2018 17:47:05 +0000 (18:47 +0100)]
verilog_parser: Properly handle recursion when processing attributes
Fixes #737
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
David Shah [Wed, 12 Dec 2018 17:17:36 +0000 (17:17 +0000)]
deminout: Consider $tribuf cells
Signed-off-by: David Shah <dave@ds0.me>